{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xa84b0b7ebf9b3617eac259bce22ba0aa11ad63873d92348529e3cc5adc213791",
    "signature": "0x0f66898ac32dc9851e75c2da365be289af925aacd973c6674fdbbc4b342a617f2412752fe90cb18a0856e6148ae920a2adcb9663779b08dc97c95983cb64ae021c",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}