{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xd45640386b37eefbc1edd6c3c63551588fe2d43d3746532a7c99787091c8d12b",
    "signature": "0xd0a763570d9e097eea08ea560dab9b1d6408735773669df8a26664d281e1360609472656cdfe60bd8a8e22dd4490a2df02ac413647d2d5be58a1d021fbd321de1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}