{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "573790218",
    "entityType": "User",
    "nonce": "0x9752457e1d448f3983715d68d3d844342ffc5eb58ef348f10059d1d558bfa3a3",
    "signature": "0xf76367a25c400007774d1ace4071098062b8b66c70b6bb677129077cfbb2a8c342922c55d2b155accd0ccdec34f619bcd4afb13cdda30cd5c50391629b57dbd81c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}