{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecc31c948048f561fd1fbdf6be8f03d217dca8857e84faae32e317ee68454aa8",
    "signature": "0xa54a391906a268e439fced72864598a106e1c67402a8fe7cff4a7eb74f3555da6b1e6b7a24a9191595de1a709ddf77899fd4edbb0cd68d1a0bce827dadf21ec01b",
    "signer": "0xBe7c9E7eec08ffa2F93A94340B4E2fa4E9f2F3Cc",
    "userId": "923089606"
  }
}