{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48250",
    "entityType": "User",
    "nonce": "0xe576df3cdc55ae2434c0411ae22b0d3fbe9504b75f754562b064fcd01725d4e4",
    "signature": "0x552a034868eafdbf566b89fd0bf220a4cf2e8c2516843cbcac558032c00fd7e55edfd703c9a48a083a4e26d22532ee16640565ee4079e781a0ffee47c108c6cf1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}