{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940003920",
    "entityType": "User",
    "nonce": "0x089415f62dbcaa4e92a3bd0fb6993a9ed48602ff6521af1a59b39b590911798c",
    "signature": "0x14d18fa923e659c0d01371c19db7528c6d6d64316bc38ce72fa2ea002f9f70940f25792325adc3764631a89c435205149237ac200ca4241cab547c012a42cb1f1c",
    "signer": "0x10805E046e879D8e4503D67e495Fd1d280142e5D",
    "userId": "355715"
  }
}