{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0x57bdc1e33c2e4cccaf619ed7af0b7992f3ddaf3d26d1931b743d2ecd2a34036a",
    "signature": "0x6a7a8ccd41438ac7e94d26d3bf9af92b42ad075bfb5f2f603eb4c0a02063f59670ec1592a3f03c2ad6dd28cee5e4ca682ffcaa4fd5c6fd641cedfe7eb67d546e1b",
    "signer": "0x9698A898Ed554B831a7BB69972E1B05eCC560430",
    "userId": "967510490"
  }
}