{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225324815",
    "entityType": "User",
    "nonce": "0xced97552f92a422aaa1301bdee0fccba714608685b1a9ca7ef437e3fb719402c",
    "signature": "0x86a87c557d8796241972e3adb5c8c264b0f8d78ad1da12fab38a474356d9b98666eaa63390dcf814f49588f01eda0a9f7641e4224d991498f9d1019633feeb871c",
    "signer": "0x57b14C261e4e7Ffa86944F858D1AE2ADE59Ebb24",
    "userId": "51616847"
  }
}