{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273529333",
    "entityType": "User",
    "nonce": "0x72e6d5151dc7ad4b128098f4597fcc434900377b69204e794be99fd0ae31ab94",
    "signature": "0x9e95555ce0e099681908200dec8854f27284138954b153ef9c5edf6fff63f26f2c8d1af0623f0f173750b8cb4180c0a42955daaea634438078cb13738f401bc61b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}