{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xf4c5354b9cb386c512fe7efba8ce7d45af0cffd1e80653c3f40d59b425ecf668",
    "signature": "0x7bb6b348adee8f4531363efe5f0c479ed144368cab00dabaa1f260d31a4b4a7c6933f66eb9495398073ec70a937d20ed4aa25712db21f91174095444edb9fe761b",
    "signer": "0x0F822Eeda362e74bF696F900786f042056530CC8",
    "userId": "481969594"
  }
}