{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x427b8b4eb46623bbd143d366dd237f2fb3343421ed44d9a7c36a289441c85e42",
    "signature": "0x077918bfd0026b0d7b01579431099545aecb4978d42e35f2e8c4849f5edc66372d0672d02f9cdd56efc7279413b42fc72a97567e8401a731fa48eb83409814aa1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}