{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65278",
    "entityType": "User",
    "nonce": "0x9f047f41f3cf6384360441cd8c10f9af9f7c1620f97c98d515195d695caab5c4",
    "signature": "0x6978c566ed646c837532453e9023f8e8d86f1b20484d15d2f5da2dbc67fee4c90b24ea02d420b06a8bae2b54d03989ce04a64f33425407e496e02bd1fab292e91b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}