{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5f97234977bc5a69675590692b727472dd2677ad38552fb6f8533a22fb25612",
    "signature": "0x95b6c82433b492f5a94984ef12e6f988e818a11954a239de3b797806967a6f1d7defab7570ed3e5b0b126645fc9ec4b493fca4e66b0c9917b8d13da1fffa49831b",
    "signer": "0x3B13b5370f9Abe46b4FAF607242E5bf602E2c8C4",
    "userId": "195900597"
  }
}