{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0x6a28bddc47f95710e81d0a90de95ddae9333acae0ba59bae50964635196537c5",
    "signature": "0xd5a984f0187502491bc8a677be832cbdf1f973dcc5afec8b2f5c5a0e4069cbee72dfeb52eee80d9d9613bc535bfccf704434e408ccccd12759079f3b36983f611c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}