{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120949",
    "entityType": "User",
    "nonce": "0xd6aa0ded691b2b65a7aceb5b2f8c786aa1d866bfd65691a1f5971b4374c2c6a0",
    "signature": "0x2356985ff0e5e1a7e8244d396577ff543f9f89b71cd0bab2c0894701689d81936ab49cca0987f3fd04cd7e09048ca6b4a4d1058cdf75df335006df783da0c8171b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}