{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234558",
    "entityType": "User",
    "nonce": "0x0b601116ba35b4bbe5cd0560b9f98c4dc78b9ec903c206476781b0e4eb917d15",
    "signature": "0x06af7f2163d72e5ab39f9d6855647978790dc3d45a123d416ca72d7b740acb59525d8f8ed08d4eb4a55d3eb39e6fe96c603af5f96de180dfe82f3dca49289bd21b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}