{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296200",
    "entityType": "User",
    "nonce": "0x1642e73f174b9cfd992e3a40364eb23486cd75e88c5cf8d9e5a86acd8875d853",
    "signature": "0xb5ea07c787fd792bea418139469933eaba73e8a2b92d8cbbed6eaba5ca7df70653349676919523b799164927e0e08c999dbeb352e9504ff399aac05bb74a6ff91b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}