{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x76caf05eeb56d0e4539f81cbd57d0222bf6394aa8656f8a4d1c2ee70bb5fd45d",
    "signature": "0xbf460e6075aa8bbd14cc2b870d322bcc34abd1e4829e1a42eabb927443984eb129ce0230cc1d542b67701fcf51d03830547724054ad42fd01a52fcef314a23ab1b",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}