{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175521766",
    "entityType": "User",
    "nonce": "0x9c3d68b80258340cf9b18b8010717574415066c852aa0b0f61ab04af43526da7",
    "signature": "0x3b20d7f535d019b04ab8769a3be5aaa269c0fe236c78067fe0a486cf635a99e725914e25f9e61ccc940b015ab92746d6b68e376a4add516ce3c06c95b01d371a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}