{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1419077",
    "entityType": "User",
    "nonce": "0x2aa0bf05fd1ddc545dc2394e47a11f70e37ee6902449e97ddec098a7822a341f",
    "signature": "0xbc1d1b444335dc9d4748e76d2e377dfeb22408f45e1884906a7e657feb55b90b6814ea78e2165038c456f524ffde0a5069d6e3f1d134c3f1087ecc90a532bb3d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}