{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120333",
    "entityType": "User",
    "nonce": "0x91f8bf837181f9a97e94012a2ad65e2972ce0074545d2413126c87851924c823",
    "signature": "0xcf1b545e69c19129daa0dd5ec9400097cad7c4fba84ecc9862fcb06b3a27a385433c513cdc4de45700bedb3467d982504826a5f31ce11326df897e3d02cdde2c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}