{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20914",
    "entityType": "User",
    "nonce": "0xe072097e5af04c21f2da1301e1d7e6f77755782eb0d2d7f6052e9ecc2d3f46ed",
    "signature": "0x6c3da83d9f4a39ba0ea3b1b8592e628a3992e23242c42502718894071c4ec5e2734a54acc985f24f69c5f81773884b7a597cb7e850e198ca9d751d72cc8255701b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}