{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed23fb9cac6fc150d8e7445fb1d12da32649219a85982dde827626c21ce54732",
    "signature": "0x4bdbe90901bbc9a669aecd0adea84f5689b6be36c250c50d5c7657309b27bf2529422b677e789d054c51e6dd72280bfd613594e5f7404538834c0ea07e9b20131b",
    "signer": "0xa8BEF74bDb7cdBA1D7E949228F5112f6af3276b9",
    "userId": "854828390"
  }
}