{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x1beb8eb0e7cb227b9b0b2abca6c9972c7c2328f942de47f684dbfe03fe0efb2b",
    "signature": "0x9a2c6a3a5676bf537cdc29bdd9ed4903c036330987823eb903285745dbcd1b1e5f10a51c0cb98322bfd841d1da3e70d5220982896f03118fc586b60f11e443901b",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}