{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21b0f2694e1f3fcc6f9db1a8f9fafbb9c3c9245b6cc03b3e6e64383fc4f82075",
    "signature": "0x1ef02665511ec07d9942c49b9d3a166247eeb9dc52e838fd1094d03090e37d207e3bcb3a383afb06d427937df899767c44ebf98033b3de4d872804403f05903d1c",
    "signer": "0x12701cFF79B087Bbb175E6B5a71D1D994Bce4888",
    "userId": "295503187"
  }
}