{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375411",
    "entityType": "User",
    "nonce": "0x8410024448509735a0ed05e3ec2ce08c2d02d23dbb2cce781dbe59efe4a691a7",
    "signature": "0xb18a4f8326625ed119a69fabff81d408e47e9b43e2dd32206dc13a7af909c6041bb0abd000b9244dd5a78f0f0931826370807ac8003a486007e2b2945f8915651b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}