{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x54f12bd565dd2b504c950c827a40c316bc78ddfc1263f718e151bf4a91937489",
    "signature": "0x812ceaa3913f9594ff7bd0f62b436d0735ccad97d9e835b7e95ddf4aa577fd3246506022b24527bb87b0ef13c22dbb8bf9e66e80c5b94e955cd3570d841e04a91b",
    "signer": "0x2A25841877cdB566b098A5579fe0ebC0AE53bB10",
    "userId": "211917910"
  }
}