{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1855990",
    "entityType": "User",
    "nonce": "0x20f503acbd6755c1d017543c0f61ab996de8a0dbe300ea651f700adb4a9b150b",
    "signature": "0x0c6e5a49ed3804ecaaa2d568e3fd7646dd737e662bf5471c09597589cfb2e68631072ac69bf0b1bb3b7638ef5d20765267d71dd4182237bee6e017342abc49611c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}