{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27669",
    "entityType": "User",
    "nonce": "0x148cf59f35ab553d70ac33c13e31174eff8c5a109291efa01ca2a75c19d04b01",
    "signature": "0x25bcf81a0f20f2334306213ece6cc77a639ff79f31f0bb19d9d87183d4a7c84423da83911cf8ab08158a802ecd40258027a6c414fe1d958b870130b57501b35a1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}