{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89655",
    "entityType": "User",
    "nonce": "0xa3b122fc5940019725444d1f84eb64e9bdbfe6268328be82dffde5ab06a53c04",
    "signature": "0xb3d13e463bf54e7b87c49447b0f43504758847bbfc5b5e735615f6f9590f477a7c1e89c616aa1850b4cecce1dddf903b41be217d8361b28427998fd676d150c91b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}