{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x7753bae119d21a7a08adebbff82786e0f11bf31b3dbfad994401dd6f89d195c5",
    "signature": "0x1167583118dbda6f49866d841dcb5dcf2236a539b0aaf3afbd29a7b001d8badb6cac243b0bb531770c0b0b8ed173b2be2905b106045d8b3cc77d6d44f3962d711b",
    "signer": "0x2B1530b3d65cF43ecAf122F062803F2B3b284F5B",
    "userId": "891157649"
  }
}