{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144744",
    "entityType": "User",
    "nonce": "0x80f24cf7a23a7a184f92340fda181736e369125bd9b49123996e42f83bcca81b",
    "signature": "0x348703e5873a74e55ecf6a03c9c861c6d45467ebce53f919215b10f11e76b7363fd864f091a2c4a1d1568d3863d4f4146529ebc012bbbc4073a460117ea928e31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}