{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "673270",
    "entityType": "User",
    "nonce": "0x206beb4ee50d4e3b0e207c5be816163f64f51ed6b780fbc7df1f500f81b5e40e",
    "signature": "0xd49fb6d2d56a4521fed22892f3d7591a6255836896aeb80780b58044a1a462dc14a5e8a8c76293b388550eb35d3643d446c1d29903e4d43392d00e614c1f63421b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}