{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207844",
    "entityType": "User",
    "nonce": "0x5c336d270b8f86854dd5dd46c58d30e91022a0f60612db477161bb47d6e84b14",
    "signature": "0x40cbc9b0ccf0d7b684668c269fb46b632614912fe15a30e67cb1078e1ea13c782aac7361a533cd9fe63d183644f2387d51db9d3556b9aaf519981cddaddb1b721c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}