{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2e0d5348f159b78058b96bb09bfb5fcbd3c148ae45b556a60fa64aa923c55647",
    "signature": "0xcd565efedb5bd076832d50ef360770bc7c8b433f71634ef909caee784b56ea8e46f63042e36904b61337e4eb0225330be18d1ca7b65e3c14cbc47816d823cd4f1c",
    "signer": "0xACCD3B03Ea2958EF485216f82C6c8B92bd703Ec1",
    "userId": "964263283"
  }
}