{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19560327",
    "entityType": "User",
    "nonce": "0x3ec3d9c12d208aa9e04fde9f123b16f05f68ce63b8800a0ce911e45afc9ca2b2",
    "signature": "0x3d0f5e20a029369ab57417fda51f07f2c56962973bd3d8332ebcf063ddaf905c4d1910795fdd4e3379dae396c1eb89a243d757b4fbe780c327ca988b26ca8e231c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}