{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375069",
    "entityType": "User",
    "nonce": "0xfc87644826fd6c2d0c79fca298f6bf05a89a7f9fa6dfa44bfaebd13a362209e7",
    "signature": "0xff9ee5fa44204b91ba9107f1326fd058caf8c924fa20dcd036ecc7851174625470ace4f54b202d9da920c6f6f37e27f179d5e5528cd384663fe7aa1a9924f6cf1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}