{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "757250",
    "entityType": "User",
    "nonce": "0x16eda53387642320c38e78bbfa3e158038e8be3417d3d3920b42624e1d1ada62",
    "signature": "0x48ea86574195544c5333f098c519dc7713562122864a90516d961253d6364a7a0d43b47581f2861dcda09db67430fd43182dbaa9c0e808b5a084a73f9efe3a0d1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}