{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1570",
    "entityType": "User",
    "nonce": "0x9e3dd699f29dfa36998cb9393cbcf238d80920ef49c0c50cff24a23dee4cfba2",
    "signature": "0xe7ab3d343fafed0f5608bb41e5faaf059947edce09fb0c73d008ba1f599e1d2923e25a86b2693ae90fc5252c45f1c8999a06bf0f6855166b0483274001b69c731c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}