{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37350",
    "entityType": "User",
    "nonce": "0x0869ce963ddcc4d336d81791263a0dd684af41c52dbe002c1daae1881b41534c",
    "signature": "0x8d10931c989ef61adc5dced868a2caa76b559d852718c7e43838e2d970f8b33073897a00c49a4f020e6c100ada021d0c822d19998201fcf055ce3b29c3c36ace1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}