{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219590",
    "entityType": "User",
    "nonce": "0xcd94c5f6cc318b5e29bd83db87f0ef48527b89a3ee7e103b6e3d1b76190c644a",
    "signature": "0xc96cd244e5a82ba80035424af1435dd24684a145bebca9376041188d2dd4bb1606061761bd562e412dfe353ad9fcac8682aae1413860cfc1632dde16dafe063b1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}