{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875797218",
    "entityType": "User",
    "nonce": "0x90bcfcae8f709a75718df0fa2c8c971fe31a1dc8733f773600e127c70e0dca72",
    "signature": "0xa08fed81857ab3dc2e39323b43772efc6048aa54591fa85a1b2593124913921c327a05ab54b03529230d10a9fb8b675d682a3a6f47968298630f04e70b6ca4a41b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}