{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686476",
    "entityType": "User",
    "nonce": "0x0be20d49aa3482c824a0851ac87725542bd06eb961a2b75f50ce767a20bfe7c1",
    "signature": "0x21fd563694a0604ff3edadd0c145c8f89bfa5a814c84c2a921e2421a11250d1152703e833bfc715347ec845c952f5f01e3ef08bbbe8792b14f58a4e7b807f2f71c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}