{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x25a5b508d78f3f84ddc8265861f7976fb7162dd1c8aff5463544efefcf14e8ae",
    "signature": "0x4d564fce73e03669f692deae60e6498bdeed3130f58144e1cf86714df74677364032ba4e4f427c477fdf4bca7da1dc35a247a1fdd1ec0dd75aa9665f966d9eb11c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}