{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880708",
    "entityType": "User",
    "nonce": "0xa38b3195226b4da7b916e0d239eaf95d82aa37fbb2f8ad83816d6ed7c3effdc7",
    "signature": "0x9b320babc2de7fc0e3ab2a6f33b93fff1fbae26dee3abd0b6b5986161315924416477cfc3e8717fa633f0117b321f51139561dc0e1d4288f790889ce191de1cb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}