{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0adf8d6798a015c7f6f865a8baf034522d00cd6b0468581e12306d1e6fa3061b",
    "signature": "0xb95ae493b23c2c3183fdd24bbf6be8da9a4a866982acb64032e800897a8f4ca87558bf3436e1d3157c2aafe48288b474caf76adcfe456d48d4ef710677e512381c",
    "signer": "0xeadDb6aE7f5dBfaC2d712F6888e47037c90dFa9C",
    "userId": "545617244"
  }
}