{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "269687",
    "entityType": "User",
    "nonce": "0x1d084dfbf77b1d30455822ae2f852d2fdbb98002fa51b0fd2c9f977f0b1dcd69",
    "signature": "0x53ef730c911e5290d8cfef5bfc450fcceab14b3cfabb2be66f7c1d5d69add9931659cad446e0f0b9355b1cd1488412f1b361501bde22212129747351aa2949d61b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}