{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788444416",
    "entityType": "User",
    "nonce": "0xa0f11a74bd41ec94beaf30fef81848fc2f0bc2179e5643a5c45541e56400ce62",
    "signature": "0xde181a9266afabed37dbb68fb796284f36c9ffb4d5da4b0dc5b13fd7339af0ce64740de1b18533d7861375642ff656982d8b48f615262aa27986d6830efb20991c",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}