{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171637838",
    "entityType": "User",
    "nonce": "0x89fbb485c3e464da9bcb78a1cbe76f05b26cfb96770efcf3070b8b92598f5e52",
    "signature": "0x6190287daf9007c265832d10f87e2545170cc4b5dec4ab95fa61f627a12b29da1b701b984ec2d3640dea46e11dc73366d06f7ab608c24b58ba8ca7bbabdf40041c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}