{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20914",
    "entityType": "User",
    "nonce": "0x838752d0169b188e44a22865b8117b7b92d2f3c3af06f49e8a21148ad6da58a7",
    "signature": "0xa1dc1e67ef35acbfe5f321114467ee1f93e06706fe7e161c057e5979cb2f35e7149e9ef4313cf042f1f22df035ef9623907958e76f1cc172c7a399ecd29023971c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}