{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148857",
    "entityType": "User",
    "nonce": "0x140998d76f7ff1917195fbe0bf911b013ff72744cae76e2545191b807647f37e",
    "signature": "0xfc1f661f6c6b62019e7ad87f5e0e6b312d556deb5d0829b64b6d9d9840fd6aaf3284543c97012246df754e3da58f58b639e46922447a235ba47ae96f18ae2c0d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}