{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8cbfa5af79c0af276d7dc59837e865ac6c95f25c1b6c1628a69d72f8b861e322",
    "signature": "0x39805ea8e80f20df71b13e8771743d3f0fe2161df6edbb16cbfc9d4ba56e5cdd2a0f214805f5ebb40ac73baa5e807e4faa7599d6c064301eae5766476e8528b71c",
    "signer": "0x45bF0eF185a00549e9683B506c4DdA2DE9C521cE",
    "userId": "755196211"
  }
}