{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77613",
    "entityType": "User",
    "nonce": "0x87ba12321560cd6f26057ffbcef44940e6ac782dab107ea3efda6e0b2c7301f7",
    "signature": "0xa238f0e7133175f1c0a2cc56090f112a1e24bbe1a51046c62e16454eabb78ec66c5e0d8fa3391d415e72856318a311dc089c1436e9d4d6de4b9cb95fcdc0cb731c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}