{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "756544",
    "entityType": "User",
    "nonce": "0x599bd0bb1f57725e911ba53cfd90ec743650bae3b15b811433eecaaa283cd306",
    "signature": "0x6f7441b9a09b908a5558be2dcfb8041f991131e37f9f7887518d8681d745e26f352a583de16de32715f88130fa7dd99dc15806f8f669d0f4086c909dbdbd2b631b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}