{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x263a15817c87d91dc7af03a4181f460a3b00dc043ba6ce69c3dbd7252fda52cc",
    "signature": "0xca3dd0b84bffc70eace0d3847df5d66e8cc4bb9e25d364439fba017c97d0eefa1928c86e2b0134558aeb04cf03a6b3a297a5b8032dc726d0dc2d76bcd4f1c3f81b",
    "signer": "0xBE565aA1453F803bEf51cB0CcBe4D0734175d33C",
    "userId": "188984382"
  }
}