{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128549",
    "entityType": "User",
    "nonce": "0x8cf7a816337571222e971515c275504d64a04688a73c4e7cf01dc8d079916abd",
    "signature": "0xf98f4e612c326fee644d2dba844ce7555b22ffde3130e7f43228ff70d3aef13f46fa7d2b75781e7037e72e6e6690a4dd4cabaff203af361a601bf1d5dc69520a1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}