{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320366",
    "entityType": "User",
    "nonce": "0x698aad72ed4ac88a7cd46ded032dee9c8f04f608910ca49bd8f7d02b06edf931",
    "signature": "0xc88e5e61eb742919e9336b2fdc34bb0847df8c5f6ffab030e5b903d94ae5eacb67188c514ffc1814b71dc5cae402dee9132a2e1329ac0041165053a2bf5fe3e91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}