{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4bfd90b9e47848682d603632bdec3cd58f09a61f3a2d91ec28d40336713b4d3c",
    "signature": "0x6175be7cb09204a541aefb881c4648b2247496928baa97ef4c79a464b5429a29191f01a366b2033171858483da7eea069efbd04ca3058d5724e3e7a4cf2c006b1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}