{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x6941a58f5b0577bbae42e9726c3ad47b303fd9710c54da0e1c0368df15caad95",
    "signature": "0x542958a64e37e645838ee47678479c1c3111e43ff57aecbe9616b85563100fd9295cd3175c22e5acb4c2693b170e35dd6e0b2a510e5a657a291adb7fa4f857c41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}