{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908088",
    "entityType": "User",
    "nonce": "0xe890f7584b1145d9c3aeef68e84e2b979a6d63df56199e4971acf046de49070b",
    "signature": "0x26b6465fbcdb883803bdf4a195e339d0324f7e3e9ec0ddbb2c3f02ffa8d63cfb59d5132c0e383b8f9eac88e48a7415af9746afb9a58d807fb9b7f8ae2cff0f081c",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}