{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297007",
    "entityType": "User",
    "nonce": "0xe8ffc06a4c3dddcfa756edcd087f85945c5a2cbc8e8c82ee0e79da410c7a0240",
    "signature": "0x247af6bb2478da7deb954c6aaab8b5d70ab03d90b01905ae0beaef05502b99ac3cb49ff78c1a7024756a08414ebe079043a86deed1b474136e35c5811d486a911c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}