{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6869",
    "entityType": "User",
    "nonce": "0xb4b466a10d3b8d1b633025a41670b3a5bcd097277fe2ac6a483f8a3c4406ac07",
    "signature": "0xe0b719507e8dad5b0ca835bc016abe300bd58daef299d0db8facb7f193300aba3e7fa5d2e02c099f81e7aa2202edec009135b00bf96598b9904a70fdbf8d9b081c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}