{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0xd6b13a95b3859928cb36bc198e55acc64ef39359fe4807b74c8859c3bed8bc58",
    "signature": "0x6ff1d8951bf96332fac488007ad89a6334f9ce59016b003fc0e5c34bb2878c7843485b17a1b688b30adc29cdbb3dbdf28ef25e85ccea90c4196f1de4037e14ba1b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}