{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80378",
    "entityType": "User",
    "nonce": "0x0b3d6a74f7ed0cf2564b935e2be9df9c8e7f0e507a627d1b7118850b3ba4c63f",
    "signature": "0x23f60c5de2af8bead265cee3d8012240ed209289e011676ca694354b67a550af4db15ac89a8205b5b9e1d3369296dd9c25c6b26247e72dcd07e0a443befa09fb1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}