{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10444173",
    "entityType": "User",
    "nonce": "0x3ddba3801df94d2c939a243acc406559b8af87dca7fd7c6d05e6a6c0e6c5f75e",
    "signature": "0xa621e4dddd0ae5ef418c88e1ff6505f2870f969cd98d1f510d2be5b7731d43574922cb2b6b0c4838d8b991967522bc822ac9304966d92b2c3974b6a2af88aded1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}