{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "648802251",
    "entityType": "User",
    "nonce": "0xc070e1ad1bdd5953c4f706aa5f7fe207be50b5a020359853920c6bedd32f5e6f",
    "signature": "0x1b805e19c4f0462f288dfa88a37f2b1630dc157b2dcb199cffded4f0120f9473461525ae0a85fcd132005d9c8a852511921a58224c183c777b6323bfb2f455df1b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}