{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54067",
    "entityType": "User",
    "nonce": "0x4f91ab3fe0a6df3e30177050020d541242693fb9c481e13c9a871708203fc031",
    "signature": "0x58b5ad36eab0901ef68a69f536175817d86f90da18a73cfc49457619e8b22d825d3043491f7b47292756814d09360cf26a84a218b9afddb72072bc08926914b81c",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}