{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bbd99b153491d3566ddfdce95cb091427cddbcd1fec70ec2df812ef10ff8557",
    "signature": "0x35f89334af32b21b90f4a84c86744e730d040c5f170c42b059bb52b87e9096f6796fc85b3cc2c6e4dfa46ea6dfab6f5343c299d8400bad2e957a7f753bd5b92c1c",
    "signer": "0x6580678E1f3e23F182eAD1743568dFc5f014b0D9",
    "userId": "608798770"
  }
}