{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10678",
    "entityType": "User",
    "nonce": "0xbdc3a90c352176997d6d2cccf322d0e14d60fe7ba0a1681b599e6d77cfa293b5",
    "signature": "0xf6119a1b09c9e2e4b61618a0406784d03c03b4f1068782cdf14920f7a47316b351d17bf4f8171065171576b8e4e17d83ef02b4f7760090e0292699676005ec281c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}