{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776553320",
    "entityType": "User",
    "nonce": "0x398164afcf97f30aaa2b9336fecbe6641b7252d43124bffe4b56cf24d4f2fef9",
    "signature": "0xd1a07b1e9f29fd6cffe9ce1021d339f7902f7c748417b374aa25e32dceded2f703bfa152afc1346e3da7dd87e002698b4a9abd44dccc586c07c0dd0f954fff541b",
    "signer": "0x7cc3C7ef84cC425aBfE9532907111154df36517a",
    "userId": "12794157"
  }
}