{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281423112",
    "entityType": "User",
    "nonce": "0x0436cc1d1f78967cd0d21a00472e478442c5912e7bb3b44ea1aeec436f55a798",
    "signature": "0xa2a98856f559e3233fe547a8b2bc5bb8819d39e9ca9b77d09ce9596cbd003b605dd09f1d49149bf4d0ffb4c8cc0cf9e0c8ee0f08f4de0b591b0dba1a77dd1bd01b",
    "signer": "0xaA2ca1cbacBF575bA565D597AD60f91610Dd25e3",
    "userId": "929684431"
  }
}