{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686476",
    "entityType": "User",
    "nonce": "0x5f112d2b2695739290e7ee8b18d64a83dd06ced79437daab831a2b5373d4cdea",
    "signature": "0xec5b8645f1cb032ad954392560b94fea55d87bfb1ed7d2628ec1b15b3d392c6a2ac59b8755095dbcd9dbf9e0df10c0fb49ac0f296bd8a27b43fbc8ef6a0240c81b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}