{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954169504",
    "entityType": "User",
    "nonce": "0xe0679988ac8ebc06f11d89495e49570b89708d03393e1ceacaf329a9f8d44d73",
    "signature": "0xe6d6da10e4f09bc740c3916efa2cf4a3281518170fbfdce0fd774a26ce6ee2f16cb7494d43b2d3a7d010b989d5d90d150f770fbc8da4f76075fb0af2a78a7e131b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}