{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e886ed148cf9b2c25fe5be7bbfb98c800bf517c89a3fb93e4feac0d9c3ff6a9",
    "signature": "0xb6d3e44a19b9a262a0dc5d7b7403845e81dbbf4c1e378dd03661a44212fe59fc58a15da3c2fa2dd68fd85772f49da19bb5e713bd1f9a1f79242c40ee374a74ff1c",
    "signer": "0x0E22Ebaa95137B9f8A1BF74451A2a0954b28D790",
    "userId": "111904859"
  }
}