{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0xfe5449e522aa6b37167c5c31d0ec766ecda229c195985bea40e47049eed4098b",
    "signature": "0xdad7450b379c4a1847266e10461da0b6ecaa29bc134efdac3416f45ef2ed945c1b6ff6ae499a14a83a3e376d0e7236ffd86a36273d0ce8a6baa2ee587b50d7f01c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}