{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475979959",
    "entityType": "User",
    "nonce": "0xf4f2df77a85ea257dc90c50702461be3a4b04b7d78570e70916ad3c957939fc5",
    "signature": "0x47a9a56ffd4e6b1e742acedfb07558cfca5bb0797421a5cdfc1e0d8d84307feb2d1402a8251144b283db9d8adc465171819561c24c0bfeb8b18523aa1ef83e141c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}