{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17814",
    "entityType": "User",
    "nonce": "0xf1a210a81d9fb258e4e5d33570e74fd7ae49b767d7a8092c56bd1f86835d1958",
    "signature": "0x8e5b41a777cbd21aae503f52c9319dfdc9f27db1094eeb32002e750675fd979e3ee686a5eee0d9a8a1e453c26f93d06115f9825da62ec697302e7ff9e71e6eba1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}