{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632080262",
    "entityType": "User",
    "nonce": "0xa52bddeeb0b23b72c7c96a08511bd729ef4c034148381e3a41e1cede664bca70",
    "signature": "0xc1650d59217170dd7b0f0fdb41fcb1ec6010784edc6e555a31988fa3a996c5c86598680f0e12e1336d494f4dadb1f908b4aede4734791f9e3d48a168f255eb731b",
    "signer": "0x9976d5a078865737aBf28C210e0f12Af0B48a213",
    "userId": "671328753"
  }
}