{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x1a0850840031430521846b02f76303b0c3c77890dd5c0d672fd3140d680e21bc",
    "signature": "0x459708c67e3ee7d678efdb59f3cecab5ca60ee4f6253b9d03a29e7e8c2ef5dc2198621456f1f0764793cb61a7ca5648ebf0631ae55585af75b6e7b000df5aef01b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}