{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347493",
    "entityType": "User",
    "nonce": "0xb1021bc7dbe51d40039c9febca5528b027e8080be9b69b6549e9e2385f3ab214",
    "signature": "0x4e966eae02545382ee6f130bf6bfd304dfb60aef342372402f30d37d236bca6b48ad9372d323afde4cab56719fd0b14f64a8de09eb96bf1373fe7c2447e7bc7e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}