{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x142353d13d756ead407f9f0649697ab2167b0aa0ffd120c1b7813e4565000397",
    "signature": "0x6c69f86f4f53df6b8e094162f8b8fe1e498ca1b8e166f750efd7a896d2ca8c853acbf2d8e8284ae06da9e27c2162e78c562dc51a50821ff34418ea2882a2cc151b",
    "signer": "0x04d2AeF69165e1c1d73288e89Bf7e0Bf14608308",
    "userId": "501224594"
  }
}