{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x032b50e57cb9df72e774163680ece0ebb76c5d3e15620ba1930cd965875efc19",
    "signature": "0xb73e93e81766b3dd81da818084f4084a97f2714d72363c0776e3932db51d21fd1005b4ec3e3f7ca71d4d319f62cfe147c98af4563dd5e6e98a75dac9dea2f4021c",
    "signer": "0x1aa54e12D87Ed255B652BbF56Fb8F76CbA31C2E7",
    "userId": "175027290"
  }
}