{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xcd26bd9eaa60c7cf9bf95ece863d00c6d22f3d2baefdf0b745ba8a506a9bd04b",
    "signature": "0x57682c0e3aed9dd2101c043e0cd2e9f3c06c05a0e419fd0446251828e4d9a1f7207b42c06254770c09ebea8d292bb83fb26a88ac0e722e2f6521e0b2f68588351c",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}