{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39377",
    "entityType": "User",
    "nonce": "0xaa54fa7854f022c1a00a38f2cffa36e2814bf3537ba6f29546257281802e0613",
    "signature": "0xa00384c1c67688d5dbb615dce8d48d60cccc071ef6fec049859a0c1d8f5121ec3669a04705d2f3ebb9f09454e9a60703ac8dc26f37b59091b51aeb4665e393121c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}