{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x5cec9916e6ffc06d499d048870ca3c7a0328fde52d020f6b1c21907e5214e632",
    "signature": "0xc885ace5957a375c8d9fa45b9db4869dd7719ec7ded8bfce33c14b1859c4d48177c3490aa226785544c3821e9e0327005d9e125c3e9cbafa5c5d876c0b6eb8641b",
    "signer": "0x176e72dFeDc28F932BeC73B513ff006a4b45dDa2",
    "userId": "93920271"
  }
}