{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73735",
    "entityType": "User",
    "nonce": "0xfdb4ff4c6e9acc1b7d84e20d1cc407e912c4f644c626e909ffcaf13c8aff0d83",
    "signature": "0x63717152483d741068e61ff2800ea741115a9266394e61f160b61815cee4e81e02fe0f37e2dfdf5df920040048961da998412d9c75ed2472cbddc6eb127114ce1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}