{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0x01e7d0fdf7a2cb0e1ec479a7be67d07225d38fd0e845b0636576199a8b4ddbac",
    "signature": "0xb463840a6f42180f2fcf12aa698835b77dfd36b6c3d77d4f401e725e53f315595803f09f8cd5a357745ec8ca5c4370f027883f9e0d1039b438607bdd87cf02801c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}