{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xc140b292020b78d00c7edd32b80f8ca73b46014e3c996b5aa6ef02074a1735e0",
    "signature": "0x93d159bb8309e99ddc711c711d6e0eafbe8599198462d8afcd5886a019dbb061181740698a2510ae59531b4a9205ee05f478371bde73ddcf6ed1137f3fd1739f1c",
    "signer": "0x6965Aa9ec89F0ab44c5241159D2188d7b83c1D25",
    "userId": "278763919"
  }
}