{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984593706",
    "entityType": "User",
    "nonce": "0x4f0db5a5d34be872a396a952de1c84c6a1401e5a99e54e59117c235fa067c507",
    "signature": "0x8d1e7eaaf9cb0721ce188631a3ecf300822868d682cfcc4c7be925640ef0f75210765ef2a8dd554e0f9e76a8966cf6534ad7f73ba0881f92e60809cd863576761b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}