{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf222f746efc04a65224040a5f2e3aabaa092cb9885634ba3da8dc5d6744d9c8",
    "signature": "0xc9ed8ceb4413227082ade0fa6ebe2cd8b115959fbdcbaa2e4da47d9cda89a1e15c4d90129bd23a605e44879228d05531008dc418da473af371215e34582ed27c1b",
    "signer": "0x76F4AF7e1f8e55b9a4464716c28F2CD1B52C5FD6",
    "userId": "996939495"
  }
}