{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195469999",
    "entityType": "User",
    "nonce": "0x4da2930a5adc2f6169aba074dc843847121af0bb6042501ad907c1ca4206dc47",
    "signature": "0x4d4c94e6a324d6772a8f6647d1a119c700c2696973dfa21c1ab77143232ad1ea664f4df8ebad0ec7594b0a229ce31306b15fb006afd22e80a8a4c5e0d216b3461b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}