{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5783",
    "entityType": "User",
    "nonce": "0x1728e4a63b286f0915102ece705975b49505090322168e372547ea163de25516",
    "signature": "0x4cca95ea17aaf87f6c317912c59154bbbef89d4d3549f6d689bb131ca3ca6c3164c88310ea8b27daf6b781d1eb8d24467f632eeeab86fa9e448454032945d8361c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}