{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297288",
    "entityType": "User",
    "nonce": "0xcfd6c8740074f84a2bc48613417c3c0ab229c09a94f65824e97692cfb9837b05",
    "signature": "0xf68197e03b157fe0eef1a5ec1e66b82381bbeca7ded40debe74f09e5b08acd284cde8233d24b26f1344662f5ef44402c61d7368574db54667b3e48f0f0337a571c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}