{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x337afd1888ba75230155d77d86dba6e263107709b506b5251bace8513d2ff42f",
    "signature": "0x80e196b0b0c8a2c70839af3e465996f206078d351ad000aec6ea428e11fb0e10055bb29a5e4495137c713977849c72e05647982334dc6d57ad866f4ae5e2e8f11c",
    "signer": "0x607D26fCBC981BBf1f9b7a1ee2EB8444b128239C",
    "userId": "68884680"
  }
}