{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6e9039ab9d7342fe2d94796da5c79be91ee7dcaa7073e3dfd6478262866b8b0",
    "signature": "0x0abb93472f449cacdaff31bcd431f52c7c932a81bd10256ec44616ce23d285c41535d3a5a60af25e63694a9446d85160953bc40ea66886c2a7f85e913945c7931c",
    "signer": "0xA027B17C3c0fE40Ba4E7efAe30Ce1c1A9D08E603",
    "userId": "614539727"
  }
}