{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x15c2bb50c56a1e718a8aea3d2c566e3402a05f2e77af701edd6070feb7be01b2",
    "signature": "0x82c2340c8eec2990ba051504f58b28e936bcdc90dc2d349dcb2eed0e22530525764042582a0115753aac3379d922c5926d435a3b8cc3ed07b887f6b0e4a2a6361b",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}