{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189724",
    "entityType": "User",
    "nonce": "0x90445ab7a427254ecadd7c56803eb9b5cdfb74ac0932407ec2b787c5a62c48b1",
    "signature": "0x13b6b30f95a1985cb0cfa01651a293932edfde0fc8b4880d51aba227e5a8a6d24b0812c4dcf7603b7d0dac8940f4bcee4a648386604ade596444a46a504467f71b",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}