{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x5d095c89a0cf9f585ca5a26468bc24396c7f726a3cea52d18a7b301622de2289",
    "signature": "0x3023f1e3d241e46121d467bb3e1f9538cc3203c01b62ac4a63ced71f0f20394a021596e3926be2c815dc63b62a7930f9f29d4db6a2d3d0bd06bf72613927fb9f1c",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}