{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "581700621",
    "entityType": "User",
    "nonce": "0xbe771722f693d1e5b6e88c926a5c24f720884d5e2d121fa1015631069988aabb",
    "signature": "0x58da4224c959c2f43814094f4dd33789b0651b36b0e34817979a38bd7a4199e66867dcf490f5d9edd28841dfb26da2e2cccd7cc66e284c80f571c266f93359811c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}