{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1886120",
    "entityType": "User",
    "nonce": "0x5e452db3f308721d82f663029844974bd22915fc6b27236ff5fe7d01cff67f87",
    "signature": "0x2cee0f5e382dfbcd88517cde9cd46ec46fba8b7fadc783de1d409df18442922d56342240bdb9f6cbeaeefcb3d97bb4afdd233a1aefc1c458df6479691dc308fb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}