{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778045",
    "entityType": "User",
    "nonce": "0xeef32fa7416fbb7a495a01a0f244ffacfd52eae6e40fd22334164866286e201c",
    "signature": "0xce60dff80152a4277af2e769577ef44982a7dd831c617ec7058971e196084ef33b05884b89da2efcfda6738983f9295b06e388be9ddf6e552b3fffb814856be81b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}