{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217588",
    "entityType": "User",
    "nonce": "0x920eeae7e3ba463e5f5e4220c4d1e55a53ea91daa15c713cf4c84ca9ea4d1be5",
    "signature": "0xa34afdca1898a062e6939b67af7c78b4f8fb507e48082858c3017fd9e554a3aa02b901fa041d150c6d593655c036d0ea2c2762cc81601e062f14976b6755035f1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}