{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x4b8f9afe6271886e6f9a3f327c0578e3a44c48ef801cc76696928b6ad1ebfd24",
    "signature": "0xecca2c4fc8c71d9a1d77f5822fb51ee13ae0db010f42a500b04525ba8e1739a5518d1f0eec0900d1de8a5b01118f494c790b89f1d47dcd21ff1bcfd28dc4da531c",
    "signer": "0x030204c18e5923d8CAb041D245E7b85E4dAc2003",
    "userId": "626007525"
  }
}