{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16959",
    "entityType": "User",
    "nonce": "0xf7864c974497a0b45107aa11e369a08622667e80323847fd2217aef7043639ab",
    "signature": "0x0bcc4561b9e1763bf85faf43cc5fdce582e7df64aee11163854b453be6bc1c605af4d70d4454452382499a1933460c88e4e0f9b6c1a0533cfab2c460e5fb5ba11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}