{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297607",
    "entityType": "User",
    "nonce": "0x3eff61a2fe941b9af54157397850b54b7331c07f64939c750c47434e662c15b2",
    "signature": "0xa9d793afad8150ed6e5d531fa7876aed979648705fa39cd51fa8478a41e310234668f6e2a5910e9ac383cf8f088376d51c0f303b2d62a32c2d1d8123364542ae1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}