{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180453",
    "entityType": "User",
    "nonce": "0xae50c564a3c4b4b0fc8f03b7d1349c9fae934bead6392d91e7f5de4a8e695b37",
    "signature": "0xf1396e66d22e1dfbde75b437ac82f4d7edc3b10e7fe9546a0879e50ce1ca5c1c401c7d412ad8150136b4086497aa1d0519f695f92da7a8e1fddd7690110c5b991b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}