{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748846998",
    "entityType": "User",
    "nonce": "0x0b0e388ce53ad31406a0709960f3dfc8b576dca8a0a56b67df742a95c0101326",
    "signature": "0x34fbfaeadf0f5aab133b6747ca8a49c3bb1d34bc61b92a03b96674ee840b0aaa534a1754684dd03a528dc3d1f069e3ab732e5eee9e1ba296f5a8eb761b2e747e1c",
    "signer": "0x9c5e7F56Eaa8b6eBFA8F0e7231898e369d2e0b18",
    "userId": "767121958"
  }
}