{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bcff5408282619f82aabbb154acd3d1b794b8c222c48805acdb02a8e15c98ad",
    "signature": "0xc33cc2eb590d0f83e214c21ddbc83f876ac101b61cb6828483fd57b40d4005702d804ed1c313e4dd679dc3293773e30a1debda7dc11f98bf0ef29bfb16432c051c",
    "signer": "0xCC1BF4fd7293cDA726Db2DFCc1754dE54B4b26d5",
    "userId": "74164662"
  }
}