{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11816cdca6b62e8b83dbedaa24aff2f2f649fe106dde7813b536f5514c2236d7",
    "signature": "0x7627205827b423bb6fd2841daee1a0e3c9fcda258f0872bada1670c94fa095a34f7a3d478636a309b855d70bdc6f96d4765c3526d3a52ca83b93dbcf647bbfa91b",
    "signer": "0x767f310d8F3fa0B81CCb11420077870b82f7c09D",
    "userId": "223753097"
  }
}