{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x14130d6e2e4fcd516ee503c4b38a0e838382e2d8f8741da3f3aa28b296c72927",
    "signature": "0x0aca99ca5c2eba085b9063e9f0eec03093f8926f803e288fd63dbe554dc33889151f89518f3c91c728e5c5cf4e2a2db8fb6336f1cb0fa0cabe022c0c27ec14ea1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}