{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144",
    "entityType": "User",
    "nonce": "0xcce0fb83075ce28d3abdc1799ceb70637148e5b198424b9323229d81f5608278",
    "signature": "0x2fee5fb56c48d921c1b7074766f5e0713ceb7e84f6a14f3b6e1ae1a9e7cd809a31d81fee4a21c970c05ff33a96c5ca0598d364fd58fd453a98c38d5ff47dbbf21c",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}