{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xe908e84b5922a1547619a83dd02e31e3ed95f27ebd19bd9f2c7993ecb9ee476d",
    "signature": "0x2ea3dd39dc571352e9f4c0f7cdaba52bf47790a52d9fd7cf06c35c381f9ab7bf5e942c651d243c996ee07ffbec0004be0187f5e96bb47e6706fde39564a01c691c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}