{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174894112",
    "entityType": "User",
    "nonce": "0x4082e4884c35e3a98dfa81db2087e4688d66fd50408d84e10f5f9cb3e4219382",
    "signature": "0x7deb69ed8d229655cae4329ebfb8d9a73105c45e7aedb8262af300404ec6056d13100f3298b231d7c852b1391dfe1c4f4dd8988f5be9768b715e35580ec7728e1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}