{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631242",
    "entityType": "User",
    "nonce": "0xf2dd691f76d9171d656c6d0765f295de4f9b3c09c478dcd19e36b0cefa156f9f",
    "signature": "0x33ccbfc9e0c867c5e2380fb5a857da197e5698ebc8af0577fd56c2be96e606c4646442f289041e89a855475421cb5a350967dce8c327b7a84d540b2d8f61f0391c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}