{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360988",
    "entityType": "User",
    "nonce": "0x214dd3a3f9b62b458364bbf7ac50477805458bd6bb0e3a67e5b6d44818b48bfd",
    "signature": "0x3a27fdc34567b842bdc66252a93e19b85a5872cdd69d61f0ad4c1661f7a3e800557c07975ecd6d0a230945aab1a526a9c150a98afd8ec936f33e9a66bf97b3291b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}