{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0d495241cbf40b9e56211a52670b2745b0a6937c100af0cc00297d51983367bd",
    "signature": "0x1ec095dc9e929824191255264eaa06edf6bea0211ff1183c5369b2218ef0f1d560cb54046d6b635d7745570f5395ea7e4b0ad11dcd0542eca741c2d67e82c2801b",
    "signer": "0x15bd1aCC8c18c6F3BdC38130eF5A5A5c55FF3D4b",
    "userId": "417582534"
  }
}