{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77744",
    "entityType": "User",
    "nonce": "0x8cf07c5ab2f32343d1e1095d84ea513502873900b729cf3b86664bc1d6a16b39",
    "signature": "0x812539f4944f0459324479f7a238b06459371f86bb7e60a2d6c3fc3e445317ae1774c4055a2c38ea007671efb76f1c721629fb0c69c591b5adfe198694f17bb01c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}