{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0x05f358520e2e52cf202d37cead2258e234df5f633abfe51638df3705a94a6847",
    "signature": "0xb25de3046039545dfb3653459d0fcae928a5dc3d72c815b0cc812f93a4d2f4f578a548c48feaa64be0cc11317919d1ac02ec1b21ef818b9728dba914adbad9931b",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}