{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375331191",
    "entityType": "User",
    "nonce": "0xa2dcb6465078b58ff42375ac433cf1bea3da285edd8b35bd13dcf8adc9c1921e",
    "signature": "0x3f786e9059acd0b06b7b4d822bbbb98e27b17975e85d49916da141fb526a94d1534c32a1af4c121d71007b0bb704f259d3ad14cc605e1062e0a7b1797706d05b1b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}