{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104552",
    "entityType": "User",
    "nonce": "0x26f1e21b13171ae3cb193f166f15c840a5b297d84dba91f2414bf596c8dc5fe9",
    "signature": "0xc51506bec80d2d33d666463ddda9c9845dabefdf727d4263bcac370fe029c454359c0660a79aba4834c71d8c16e743db64f1fad754ec64a923ce1a2c704ba33b1b",
    "signer": "0x15F044DF87A440bA5eEeC6D18C219f99Fe2A80b3",
    "userId": "909119422"
  }
}