{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390804",
    "entityType": "User",
    "nonce": "0x672f8d47af53fce01be3aef1eafbbfce7e70fca005b8065c934a5cd9bbdc852b",
    "signature": "0x8dac810f36455bb8ea291d0e584d6b6f425aa7153a6013f07b76b363c190b2cc670a796a2f6f52737c7a1063e75dbfc0c785707b81663e9b41a44ae3657b9fc51c",
    "signer": "0x5519273e7F56179D149833bd4B08c25Be4fC65Bc",
    "userId": "35859"
  }
}