{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107884709",
    "entityType": "User",
    "nonce": "0xd7cc437de29e0dd66550cb866c4a7af357171d10091feadcdd7e817af51fb838",
    "signature": "0xcec59ffb7b64035bcac9ee0167dae3c7c41be00a6a0989c366eff64386cdfe4c26b1066d24e03dbe5bafd703be7937ee1a3dd4e4415e13b23bb5918fd910e5611b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}