{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeec2781d8324bebeb0bf9be9eeda7bee5338332661b9eccfbbf30f365988f8b5",
    "signature": "0x911c8e1bc2e19875ebff11e245d85acc331eaf41b4e30eb4b3d8f8e8f80f3a0d521bb8e56bcb36ca7607437bf386263d282b868fa41993b3e8a732ef181d6a051b",
    "signer": "0xE18110b460c1ae037aB2F40BBfb715Ee5a1f65bA",
    "userId": "770787877"
  }
}