{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x95d63cd815b45188a109da08ad27c4015cf8a2a92a201e757772f5780636b3de",
    "signature": "0xadbea1904a7fdf12fca70c15395ebcb2d6ccd7d9e0fd5bb79ac58a105702127e10ae94fef20bb70696146c716c4a3505260acd5e23cd0376acd46747d29c1aa81c",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}