{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a5e56fe16379a04b44022a3d78be3b43f5802399848bf24a9ecee7576e9e0d7",
    "signature": "0xb7261a576442c530152236c3352af64ec6ec8cdc445ad394494b9438e1ec3bae5c46a7afb44f112e45ea8dda8b7652699a5b9b2dfbed66a815c2144c97264cd01c",
    "signer": "0x67087E1baD2783Fac97f3D72988059c1a3ebCE35",
    "userId": "601718443"
  }
}