{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3287",
    "entityType": "User",
    "nonce": "0x544beb8d02f92f8d5290e5d507962f3e7b7c788200eb1477f9e305ccdd90e187",
    "signature": "0x9c276d6cf5a9eecc5fab6fcb92632347ff9594826d5de5f0583dac7359e040291e8127eccd875d598904e286c4ec380eeae6901d366a1ff865c90e7250c5dfb51b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}