{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0x6414bf7002822b9f17a338246afe9154a4b03bfad11aa6679ac1eb6d1b9008a0",
    "signature": "0x0af8b3a2788bba3e0265739e3d329bda3bcabe1edfec9e1cd7aa3ec734d5efcf78fc57fc972749a09d5f519e4e8cd85aedcc8a18f404976692499af93070540f1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}