{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40758",
    "entityType": "User",
    "nonce": "0x6ecddfe5ffa79e9d2b3e7975e1b7df9cda835cf56effa9fe7bec118e829f3c37",
    "signature": "0x4407497575b27b2e417b1a44829079365ca28b6074cbd3cb55d63b9f5fdfa63c25946c59af3ade664035b1a13f3c5f96dd7da61a03cc7ea107f8628464896bec1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}