{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xd49662e368f2f8f44852695bf8dd5aa73ffdc723db5c72cd83a443de9ccc8f58",
    "signature": "0xee26b2457ee243f7b587939d515ddff61a3c24d95c0ec86d08392a483146abc73351ca3bda86a77b00997146953aed29cc6ccb850ab97a1ab1d0d2f5bc1b0e281b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}