{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77945",
    "entityType": "User",
    "nonce": "0xb84d7c940748cf17c2dfb2d79339f8265f55c074d7f2f00504e2d676ad6f3710",
    "signature": "0xdf215952cea61750d382de62d136955c4a53853780a2281c575bc8230a48e3347412f6fcc297b97589a033b6e3c07f1c51d71b365c7e4e713f93565e921bf4571b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}