{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0x9f4fec144a1574f4d3fb457ccae604f4a6d819bc9f2cb6add242389b801ea163",
    "signature": "0xb5d29c0b58898eed7c472cf62e58eafc283f4611d370816625f1c0c5ae7f9544148420c3f7b1e33e62e3e921155146925388b1edd8a52baced6490bbe311da711b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}