{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150784",
    "entityType": "User",
    "nonce": "0xd5dad84dcf56332047ec5a65477541458b6b5d3510063f98022c67b3db4ab570",
    "signature": "0x0574b04e88432d35e243f9f5de85047bbfbb796ef3c9b29e7ee92f49318b673204e54fe240822a0d34a6d979b6e6448b8a50c726d412bc58b67aa2ee5a1dc4ec1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}