{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140587",
    "entityType": "User",
    "nonce": "0xa2ce0291c823efbfcdf501003081269e5f5cac1df4cdf6883798cb60aef5dc59",
    "signature": "0xb84e24a1ce8ae1b9e5e505ee2eb0c9e848655628210eadbb71852fc59fc91f1b3b9f09c3a58900e633c674f3a744e3fd5eff6ae8f498303fe948c57246314d491c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}