{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123187480",
    "entityType": "User",
    "nonce": "0x639737650c78df77c08652cf0bf1aaf43a28c9a7727813009b4f531bebca09be",
    "signature": "0xa3c26c33d8b0dae605cc5f26ebd7d43c1f9d0695fcc9ee5be487597d037de3f8406d8f771721e46a95f28f20188bea33723fd30a752b490c9d10bab9c5158b4a1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}