{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136736",
    "entityType": "User",
    "nonce": "0x3737372a92e9049e3fc1db14fd1af7db74e8527854699590f0c6fb07c1c64002",
    "signature": "0xa71b2aabeecbc40e905b9eebf7a0275aae6daec73e8d1cc6647df0f5385ab1c62c13403ca3de8cfed40400a75ca69c98f135aad7181f61b53e96bc72a1b480141b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}