{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917715333",
    "entityType": "User",
    "nonce": "0x1a6c624bfa87b02cf0a6d5b89b297719c0d661d0e1f54291c58865ad696e249f",
    "signature": "0x8997e939d0037f6383388be438305398c8bef7361b4ebdb1c03f0b0c6061e479790a25022007916c3d21d36a971e8d44a8a2913989bc6285a38aba00d45545251b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}