{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e47e66742961ea383db6753b3e927897e4a4482c7c7b523eaaf39ce9bcaa9c8",
    "signature": "0xbf84ab0393b9dd61628472ea2128c44e9c26c0f6d383390274eb50b4e2f3302c53938504112c8685c8658b8373b0b094b08b2abdc6cd30e140f935cb736e6ed61c",
    "signer": "0x42a0b447dFa91EC646aCA9aB372710c69De1b215",
    "userId": "376568976"
  }
}