{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346741915",
    "entityType": "User",
    "nonce": "0x1e0d8c3c280f3c857e3347923749a8295b6253c9ca19e37292806981cc4315bc",
    "signature": "0xfc0d7d655e4dd8f8fd21a4a8e88ebaf003919d211f4e4b8d374109eb8db42cf6474b4773fd006ea0edcbcd0e23d7a6bf34f872882c5246acd8d5fb22e5f742341b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}