{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0cae9988d37568ba3a669cf5e4968b0e1e8d471f2caf37b8113cece2c0afbf8",
    "signature": "0xb1af12c487063bcca0e7589dfea9d32a521bef0866fe57a97ff9aa96dce3d1ef3729f8c2b2263c6ffd08bf3ba2f29d0f78f759d3383db21e34f3b4b3782a582e1c",
    "signer": "0x6124CF3cBdc678B30cAB8d4312DEAbDd093d8A91",
    "userId": "557666705"
  }
}