{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "696843",
    "entityType": "User",
    "nonce": "0x78bfc58653662317347b68068a3e3df504e5fa89691570ece6d709a0fc564f30",
    "signature": "0x9c4e10c965864428cf560bafc51962098bc9e4ccd3daaef7fba55b490a1c2ab438b7ae7be2be7b387baeed2ce28fb99450c3259779d2e4e712460c0222cadba41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}