{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0xca95435c5bd152fc1601f574461ac5dbccee459d230bb58374a92d32677b42c7",
    "signature": "0xc34e3f9372d0c7fe7ddc76cd0bf3c80e795e2d6402a6e389929658dfed3a4c856d775ed2268bab8b348bc3bb97f01aac4c66a681efddd822b3bd78d28ac236fc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}