{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe0a8330a84b3421b9d4d94afa712b06088c14591e833994c962d09052bc15aaa",
    "signature": "0x5ac4fd0f5a284c60d0618d389925cf9029247882ddaf45aebd6cf993e48e33750c162f0d491dd816c9b00c4c542da8ea81870ec8f8aa0174fcd24f8a1a589ccc1b",
    "signer": "0x992090a2707984a1289cDf75d7FAbD2a311b32F0",
    "userId": "845645762"
  }
}