{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2051365",
    "entityType": "User",
    "nonce": "0xa1e7bb2d2b66edaef04296a5cb881610bbc6281f81b6e8a2e53a37685d958edb",
    "signature": "0xaf5d2fa592f7d551eb6ceba59c10d7dbcdf430aeba2d103f80a5b0862575520069066c97e878c687393f4547f8766ffdde70327bbac62907e1d70f51a1e8587e1b",
    "signer": "0x738Fb353b57EdB4d1f33c0049D33b204243db2ad",
    "userId": "693463302"
  }
}