{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x458c79ce4a74c5eb7bf5dbc6f07cf2da4302899e2cb3322b2ee1085e0579a83d",
    "signature": "0x203658feadd9da6170264e179f967f44f57da2e3df5fe5ebb2048ca0b37b61e3037cf7f291ab75baf2833c1ab5919f10c65c8e4ef72da897cb82188dbd2e46031c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}