{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x01fca05ab1c35a5b6dbce24f9512442d93ce712b331f4beb0e8eed39faa5d55c",
    "signature": "0x6bf97ccbe7e1330e0f16bf28978b5e2c9e204a8b2c4f16d43189576b21766e9964984adec27f98ccd5449a49d985e5073a41adf137584915302d553291fcf6e51c",
    "signer": "0x2D597fe412aFD27DE182CE64884648F1476D2cB5",
    "userId": "532527541"
  }
}