{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995816736",
    "entityType": "User",
    "nonce": "0x2ce2ac2de76f5e334958099f410437aa5deca4eaf2230c26dcb1ba791aeda39d",
    "signature": "0x620171c8304a3015115a0c613feb8d9070578ec64a9581cf6b27081b5efd31505d3f879f8428029d572b43d3fe3ecfa4ce77150ea525a734e0f9b79f266229bd1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}