{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x03b609d97c3d37211bb786e521d61cbc865e75ba3e3a98818adf291bac322619",
    "signature": "0xfbcf96e02549a3bf0068b932ff9b7ab302cba5f825ea9b0156b16d92d8ce5a5017b108c1f40c55daa660a6349902bfbf5e5438785c6f5dea4dfc0a5a1ce8ed6b1c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}