{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3917",
    "entityType": "User",
    "nonce": "0xd039f98b7a7061baa7b406691fd0b8bb463bba1b8f6a6f730410152e420cb6c7",
    "signature": "0x70f2b7649bdb8e692008a02a903b836e173098eae971c6930a1b7e3073adc82345eae1df016aa653be2ebe15e273d598ddeec19fa4c6ce4c3f8b3989b1b7944e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}