{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358394",
    "entityType": "User",
    "nonce": "0x39cd78b3e35f9ad7b49cfbc82a619ca9f6239558fe23b362c2f4496156be4dd4",
    "signature": "0x2238b2e1cae96edc58f3750c6189350ea040c398d133cf9da9e26b502730bd2506758aba5bd40af70957d40cb267bd7bf3307ab5a8f05c81fd4c3023df5246881c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}