{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485171412",
    "entityType": "User",
    "nonce": "0x5830e17f9a432d7b0e2d909429e81f30106f0c0ff35e1538973d595d243c514b",
    "signature": "0xe4a351c325bb7b535fb79643b9dd660055639a149d9393c67ddeb5087c1324b94fa1c63c13601b860938fcea9d16397aefb6128c9990a42b41b271dc1205b6dd1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}