{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x0fcdd1c01c2227beb39c3d6dc68a20d9a3386370edac5a5e4ec76a08e5b9abe6",
    "signature": "0xd1b64bab10ca0dd887a18b44c7168cb46202c9568f9fbd04fe8f32f70e4808f95f7745846a35ddddbfd82139a9669c0b4aacf5a45ca966c53f4839b138186b4f1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}