{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd263663bb8d6e2c6e134bc8c07cbb2061de00ea1711e60e0824f7ee297ecc74b",
    "signature": "0x69f64dcc2989a13a3c8633a6fbb563be61d76355a99fa95f67c884670b86faed46fed7b78b844419c6a9fa178141be6a6b1a9d880edd88d7b6a550c3871d14391c",
    "signer": "0x70c2cc51743FA2A54bcaD18AD60b64d1aC2C2e44",
    "userId": "284281532"
  }
}